Abstract: Compounds of formula (I) ##STR1## wherein one of the radicals R.sup.1 or R.sup.2 is --N.dbd.C.dbd.O and the other is --NHC(O)S(CH.sub.2).sub.3 Si(OR.sup.3).sub.3, wherein R.sup.3 is C.sub.1 -C.sub.4 alkyl or phenyl, are most suitable for use as adhesion promoters for polyurethane single-component or two-component adhesives and also as primers.

Abstract: The present invention relates to compositions containing (a) at least one compound having at least one 1,2-epoxide group in its molecule and (b) at least one compound of the formulae I, II, III or IV ##STR1## in which m and n independently of one another are 1 or 2, y is an integer from 2 to 10, p is 3 or 4, R.sup.1, R.sup.3 and R.sup.4 are derived from radicals of aliphatic, cycloaliphatic or aromatic carboxylic acids, R.sup.1 being a divalent or trivalent radical, R.sup.3 being a divalent radical and R.sup.4 being a trivalent or tetravalent radical, after the removal of the carboxyl groups, R.sup.5 is a divalent radical of an aromatic hydroxycarboxylic acid after the removal of the carboxyl group and of the phenolic hydroxyl group and R.sup.2 is the radical of an aliphatic or cycloaliphatic diol after the removal of the two hydroxyl groups, subject to the proviso that at least 70% by weight of the radicals R.sup.1 or R.sup.

Abstract: Compositions are described containing(A) an epoxy resin having on average at least two 1,2-epoxy groups per molecule or a mixture of these epoxy resins,(B) a compound of the formula I or a mixture of these compounds ##STR1## in which a and b independently of one another are 1 or 2, R.sup.1 is a .pi.-arene, R.sup.2 is a .pi.-arene, an indenyl anion or a cyclopentadienyl anion, X.sup..crclbar. is an [LQ.sub.m ].sup..crclbar. or an anion of a partially fluorinated or perfluorinated aliphatic or aromatic sulfonic acid, L is B, P, As or Sb, Q is fluorine or some of the radicals Q can also be hydroxyl groups and m corresponds to the valence of L increased by one, and(C) a flexible polyester which is terminated by, on average, at least two carboxyl groups and which is derived from an aliphatic or cycloaliphatic polyol or a mixture of such polyols and from an aliphatic, cycloaliphatic or aromatic polycarboxylic acid or a mixture of such polycarboxylic acids.

Abstract: Curable mixtures, comprising(a) a cycloaliphatic polyol of the formula I ##STR1## in which z is ##STR2## m is a number from 2 to 5, n is zero or a number from 1 to 10 and X is a direct bond or an aliphatic or cycloaliphatic radical, and(b) a prepolymeric polyhydroxy compound blocked by an aliphatic or cycloaliphatic diisocyanate, are advantageously suitable for producing adhesive bonds and seals having high tensile shear strengths.

Abstract: Compounds of the general formula I ##STR1## in which R.sup.1 is hydrogen, C.sub.1 -C.sub.12 -alkyl, C.sub.5 -C.sub.7 -cycloalkyl, phenyl or benzyl and R.sup.2 is hydrogen or C.sub.1 -C.sub.4 -alkyl, or R.sup.1 and R.sup.2, together with the C atom to which they are attached, form a 5-membered or 6-membered ring, and R.sup.3, R.sup.4, R.sup.5 and R.sup.6 are identical or different and are hydrogen, C.sub.1 -C.sub.12 -alkyl, phenyl which is unsubstituted or monosubstituted to trisubstituted by C.sub.1 -C.sub.4 -alkyl, halogen or C.sub.1 -C.sub.4 -alkoxy, or is a group of the formula --CH.sub.2 OR.sup.7 (II) in which R.sup.7 is C.sub.1- C.sub.12 -alkyl, phenyl which is unsubstituted or monosubstituted to trisubstituted by C.sub.1 -C.sub.4 -alkyl, halogen or C.sub.1 -C.sub.4 -alkoxy, or is --C(O)--R.sup.8, and R.sup.8 is C.sub.1 -C.sub.12 -alkyl, and also not more than two of the radicals R.sup.3, R.sup.4, R.sup.5 and R.sup.6 are one or two groups of the formula --CH.sub.2 CH.sub.2 Si(OR.sup.9).sub.3 (III), --CH.

Abstract: Compounds of the general formula I ##STR1## in which R.sup.1 is hydrogen, C.sub.1 -C.sub.12 -alkyl, C.sub.5 -C.sub.7 -cycloalkyl, phenyl or benzyl and R.sup.2 is hydrogen or C.sub.1 -C.sub.4 -alkyl, or R.sup.1 and R.sup.2, together with the C atom to which they are attached, form a 5-membered or 6-membered ring, and R.sup.3, R.sup.4, R.sup.5 and R.sup.6 are identical or different and are hydrogen, C.sub.1 -C.sub.12 -alkyl, phenyl which is unsubstituted or monosubstituted to trisubstituted by C.sub.1 -C.sub.4 -alkyl, halogen or C.sub.1 -C.sub.4 -alkoxy, or is a group of the formula --CH.sub.2 OR.sup.7 (II) in which R.sup.7 is C.sub.1 -C.sub.12 -alkyl, phenyl which is unsubstituted or monosubstituted to trisubstituted by C.sub.1 -C.sub.4 -alkyl, halogen or C.sub.1 -C.sub.4 -alkoxy, or is --C(O)--R.sup.8, and R.sup.8 is C.sub.1 -C.sub.12 -alkyl, and also not more than two of the radicals R.sup.3, R.sup.4, R.sup.5 and R.sup.6 are one or two groups of the formula --CH.sub.2 CH.sub.2 Si(OR.sup.9).sub.3 (III), --CH.

Abstract: A solution process, and a catalyst therefor, for the preparation of high molecular weight polymers of alph-olefins viz. homopolymers of ethylene and copolymers of ethylene and C.sub.3 -C.sub.12 alpha-olefins, is disclosed. The process is operated under solution polymerization conditions at 105.degree.-320.degree.. The catalyst is obtained from titanium tetrahalides, vanadium oxytrihalides and organoaluminum compounds, in which an admixture of catalyst components is heat-treated at 150.degree.-320.degree. C., and activated with an aluminoxane. The catalyst has good activity and the polymer obtained has improved color.

Abstract: Metal halide particles useful, among other things, as olefin polymerization catalyst precursors and catalyst supports, are prepared by vaporizing the metal halide and then condensing it in the presence of a diluent.

Abstract: The invention relates to compounds with structures of the formulae I to IV ##STR1## in which formulae Tr is a radical of formula V or VI ##STR2## A is --O-- or --NR.sup.1 --, R.sup.1 is hydrogen or a monovalent organic radical,X is a di- or trifunctional radical of a hydroxycarboxylic or amino-carboxylic acid after removal of the functional groups,R.sup.2, if m is 1, has one of the meanings of R.sup.1, or R.sup.

Abstract: Metal halide particles useful, among other things, as olefin polymerization catalyst precursors and catalyst supports are prepared by vaporizing the metal halide and then condensing it in the presence of a diluent.